Find yourself a Radio Control, a Smart Lamp, a Noisemaker, and a few radio activation mods. Mod the noisemaker to look for Green signals and use it to draw zombies away (or towards caltrops/nailboard traps you placed). Throw the smart lamp and activate it with Blue to act as a renewable flare you can turn off. You can mod ONE bomb/grenade at a time with red and explode dangerous enemies around corners with precision timing. Careful not to press red by accident though, it’s the default button when you activate the radio controls.